Aluminum foil Mylar is a composite material consisting of aluminum foil and polyester film (Mylar).<\/p>\n
I. Main characteristics of aluminum foil Mylar: 1) Excellent barrier properties. Aluminum foil Mylar exhibits excellent barrier properties, effectively blocking moisture, oxygen, light, and electromagnetic waves.
\n2) High strength and durability: The addition of polyester film enhances the mechanical strength of aluminum foil Mylar, enabling it to withstand certain levels of stretching and tearing.
\n3) Lightweight and easy to process: Aluminum foil Mylar is lightweight, making it easy to transport and process.
\n4) Electrical conductivity and electromagnetic shielding performance: The electrical conductivity of aluminum foil makes it widely used in the electronics industry for electromagnetic shielding, protecting sensitive equipment from interference.<\/p>\n
II. The orientation (inward or outward) of the aluminum foil shielding layer of the cable directly affects its electromagnetic shielding effect:
\n1) When facing inward, the aluminum foil comes into direct contact with the wire core, absorbing the electric field energy on the conductor surface through the image charge effect, reducing near-field radiation by 10-15dB.
\n2) When facing outward, the aluminum foil serves as the first shielding layer, with a reflectivity of over 90%, improving the attenuation of external magnetic field interference by 20%-30%.
\n3) Prefer inward orientation: Scenarios where the signal frequency is greater than 1GHz and strict control of radiated emissions is required (such as EMC Class B standards).
\n4) Prefer facing outwards: In scenarios where there is strong external interference (such as an electric field strength of 10kV\/m), frequent bending, or grounding is required.
\n5) Composite shielding: When EMC requirements are stringent, a double-layer structure consisting of “inner aluminum foil + outer copper braiding” is adopted, with a shielding effectiveness >120dB (1GHz).<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum foil Mylar is a composite material consisting of aluminum foil and polyester film (Mylar). I. Main characteristics of aluminum foil Mylar: 1) Excellent barrier properties. Aluminum foil Mylar exhibits excellent barrier properties, effectively blocking moisture, oxygen, light, and electromagnetic waves. 2) High strength and durability: The addition of polyester film enhances the mechanical strength […]<\/p>\n","protected":false},"author":1,"featured_media":2036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2035","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\n